<!DOCTYPE html>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
	<title>12-分组-1.html</title>
	<style type="text/css">
	* {
		padding: 0;
		margin: 0;
	}
	span.red{
		color: red;
	}
    </style>
</head>
<body>
	<div class="container" id="container">
		<h1>12-分组-1.html</h1> 
	  <p>后盾人</p>
	  <h1>houdunren.com</h1>
	  <h1>hdcms.com</h1>
	</div>
	<script src="../tools/utils.js"></script>
	<script type="text/javascript">
 var hd = `
  https://www.houdunren.com
  http://houdunwang.com
  https://hdcms.com
`;

let reg = /https?:\/\/((?:\w+\.)?\w+\.(?:com|org|cn))/gi;
while ((v = reg.exec(hd))) {
  console.dir(v);
}

	</script>
</body>
</html>